I have a "conservative" tune.....With the stock pully I saw low 11/high 12 AFR. With the 10 pound pully I see mid 11's on a warm day and 12.0's on a colder day.
Data logging with the LM1 wide band
Data loggin with the split second R4 program
here is a pic of the pully
not much to look at...but the trained eye can pick it out as I found out last night. I was hoping to keep this one a secret for a while but, Mr 2002 GTS ACR knows his supercharged vipers pretty well
